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From: Uros Bizjak <ubizjak@gmail.com>
Date: Thu, 21 Oct 2021 21:04:43 +0200
Message-ID: <CAFULd4bC8apj6xAtazddOhx0Nij6Z684Ar=V+_Lc_pWonEct0Q@mail.gmail.com>
Subject: Re: [PATCH] x86: Document -fcf-protection requires i686 or newer
To: "H.J. Lu" <hjl.tools@gmail.com>
Cc: "gcc-patches@gcc.gnu.org" <gcc-patches@gcc.gnu.org>
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On Thu, Oct 21, 2021 at 6:47 PM H.J. Lu <hjl.tools@gmail.com> wrote:
>
>         PR target/98667
>         * doc/invoke.texi: Document -fcf-protection requires i686 or
>         new.

Obvious patch?

Uros.

> ---
>  gcc/doc/invoke.texi | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
> index c66a25fcd69..71992b8c597 100644
> --- a/gcc/doc/invoke.texi
> +++ b/gcc/doc/invoke.texi
> @@ -15542,7 +15542,8 @@ which functions and calls should be skipped from instrumentation
>  (@pxref{Function Attributes}).
>
>  Currently the x86 GNU/Linux target provides an implementation based
> -on Intel Control-flow Enforcement Technology (CET).
> +on Intel Control-flow Enforcement Technology (CET) which works for
> +i686 processor or newer.
>
>  @item -fstack-protector
>  @opindex fstack-protector
> --
> 2.32.0
>